Fix #4

Don't generate 0-width or 0-height images
waveform80 · Aug 6, 2018 · 083fe6a · 083fe6a
1 parent 123ad6e
commit 083fe6a
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/pisense/anim.py b/pisense/anim.py
@@ -166,6 +166,8 @@ def draw_text(text, font='default.pil', size=8, foreground=Color('white'),
     width, height = draw.textsize(text, f, spacing=1)
     pad_left, pad_top, pad_right, pad_bottom = padding
     pad_top = max(pad_top, min_height - (pad_top + height + pad_bottom))
+    if pad_left + width + pad_right == 0 or pad_top + height + pad_bottom == 0:
+        raise ValueError('Cannot generate an image with 0 width or height')
     img = Image.new('RGB', (
         pad_left + width + pad_right,
         pad_top + height + pad_bottom